/* =========================================================
   株式会社エフィシエントディスカバリー  Official Website
   ========================================================= */

:root{
  --ink:#1c1a17;
  --ink-soft:#4a453d;
  --line:#e4ddd2;
  --paper:#ffffff;
  --cream:#f7f3ec;
  --cream-deep:#efe8dc;
  --gold:#a8894f;
  --gold-deep:#8a6d38;
  --bordeaux:#6a2233;
  --shadow:0 22px 60px -28px rgba(28,26,23,.42);
  --ease:cubic-bezier(.22,.61,.36,1);
  --maxw:1200px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}

body{
  font-family:"Noto Sans JP",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.9;
  font-size:15px;
  letter-spacing:.02em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

.serif{
  font-family:"Cormorant Garamond","Noto Serif JP",serif;
}

/* ---------- Layout helpers ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(20px,5vw,48px)}
.section{padding:clamp(72px,11vw,140px) 0}
.section--cream{background:var(--cream)}
.section--ink{background:var(--ink);color:#f2ede4}

.eyebrow{
  font-family:"Cormorant Garamond",serif;
  font-size:.82rem;
  letter-spacing:.42em;
  text-transform:uppercase;
  color:var(--gold-deep);
  display:flex;align-items:center;gap:.9em;
  font-weight:600;
}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--gold)}
.section--ink .eyebrow{color:var(--gold)}

.head{
  font-family:"Noto Serif JP",serif;
  font-weight:600;
  line-height:1.5;
  font-size:clamp(1.6rem,3.6vw,2.5rem);
  margin:.55em 0 .2em;
  letter-spacing:.04em;
}
.head .en{
  display:block;
  font-family:"Cormorant Garamond",serif;
  font-style:italic;
  font-weight:500;
  letter-spacing:.06em;
  color:var(--gold-deep);
  font-size:clamp(1rem,2vw,1.35rem);
  margin-top:.5em;
}
.section--ink .head .en{color:var(--gold)}

.lead{
  max-width:42em;color:var(--ink-soft);
  font-size:clamp(.95rem,1.4vw,1.02rem);
}
.section--ink .lead{color:#cfc7b8}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.8em;
  font-family:"Cormorant Garamond",serif;
  font-size:1.02rem;font-weight:600;letter-spacing:.16em;
  text-transform:uppercase;
  padding:1.05em 2.4em;
  border:1px solid var(--ink);
  background:var(--ink);color:#fff;
  transition:.45s var(--ease);
  position:relative;overflow:hidden;
}
.btn span{position:relative;z-index:1;transition:.45s var(--ease)}
.btn::after{
  content:"";position:absolute;inset:0;background:var(--gold);
  transform:translateY(101%);transition:.45s var(--ease);
}
.btn:hover::after{transform:translateY(0)}
.btn:hover{border-color:var(--gold);color:#fff}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn--ghost:hover{color:#fff}
.btn--light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}

.arrow-link{
  display:inline-flex;align-items:center;gap:.7em;
  font-family:"Cormorant Garamond",serif;letter-spacing:.14em;
  text-transform:uppercase;font-weight:600;font-size:.95rem;
  color:var(--gold-deep);
}
.arrow-link .l{width:38px;height:1px;background:currentColor;transition:.4s var(--ease)}
.arrow-link:hover .l{width:58px}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;width:100%;z-index:100;
  padding:22px 0;
  transition:background .45s var(--ease),padding .45s var(--ease),box-shadow .45s var(--ease);
}
.site-header.scrolled{
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  padding:12px 0;
  box-shadow:0 1px 0 rgba(28,26,23,.08);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:13px;line-height:1.25}
.brand-logo{
  width:46px;height:46px;flex:none;display:grid;place-items:center;
  background:var(--cream);border-radius:3px;transition:.45s var(--ease);
}
.scrolled .brand-logo{background:transparent}
.brand-logo img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}
.brand-txt{color:#fff;transition:color .45s var(--ease)}
.scrolled .brand-txt{color:var(--ink)}
.brand-txt b{
  display:block;font-family:"Cormorant Garamond",serif;
  font-weight:600;letter-spacing:.22em;font-size:.95rem;text-transform:uppercase;
}
.brand-txt small{font-size:.66rem;letter-spacing:.24em;opacity:.8}

.nav{display:flex;align-items:center;gap:clamp(18px,2.4vw,36px)}
.nav a{
  position:relative;font-size:.8rem;letter-spacing:.12em;font-weight:500;
  color:#fff;transition:color .45s var(--ease);padding:6px 0;
}
.scrolled .nav a{color:var(--ink)}
.nav a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:1px;
  background:var(--gold);transition:width .4s var(--ease);
}
.nav a:hover::after{width:100%}
.nav .nav-cta{
  border:1px solid rgba(255,255,255,.55);padding:.7em 1.5em;letter-spacing:.16em;
  font-family:"Cormorant Garamond",serif;text-transform:uppercase;font-weight:600;
}
.scrolled .nav .nav-cta{border-color:var(--ink)}
.nav .nav-cta::after{display:none}
.nav .nav-cta:hover{background:var(--gold);border-color:var(--gold);color:#fff}

.burger{display:none;flex-direction:column;gap:6px;background:none;border:0;cursor:pointer;padding:8px;z-index:110}
.burger span{width:26px;height:2px;background:#fff;transition:.35s var(--ease)}
.scrolled .burger span{background:var(--ink)}
.menu-open .burger span{background:var(--ink)}
.menu-open .burger span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.menu-open .burger span:nth-child(2){opacity:0}
.menu-open .burger span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:flex-end;
  color:#fff;overflow:hidden;
}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;transform:scale(1.08);animation:heroZoom 14s var(--ease) forwards}
@keyframes heroZoom{to{transform:scale(1)}}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,18,15,.55) 0%,rgba(20,18,15,.15) 35%,rgba(20,18,15,.72) 100%);
}
.hero-inner{position:relative;z-index:1;width:100%;padding-bottom:clamp(60px,10vw,120px);padding-top:160px}
.hero .eyebrow{color:#e9d9b8}
.hero .eyebrow::before{background:#e9d9b8}
.hero h1{
  font-family:"Cormorant Garamond","Noto Serif JP",serif;
  font-weight:500;
  font-size:clamp(2.6rem,7vw,5.6rem);
  line-height:1.08;
  letter-spacing:.01em;
  margin:.35em 0 .3em;
  text-shadow:0 4px 40px rgba(0,0,0,.35);
}
.hero h1 .jp{
  display:block;font-family:"Noto Serif JP",serif;font-weight:500;
  font-size:clamp(1.05rem,2.4vw,1.6rem);letter-spacing:.16em;margin-top:.9em;color:#f0e9db;
}
.hero p.tag{max-width:34em;color:#e7e0d3;font-size:clamp(.95rem,1.5vw,1.08rem)}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:2.4em}

.scroll-cue{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:1;
  writing-mode:vertical-rl;font-family:"Cormorant Garamond",serif;letter-spacing:.3em;
  font-size:.72rem;text-transform:uppercase;color:rgba(255,255,255,.75);
  display:flex;align-items:center;gap:14px;
}
.scroll-cue::after{content:"";width:1px;height:60px;background:rgba(255,255,255,.5);animation:cue 2s var(--ease) infinite}
@keyframes cue{0%{transform:scaleY(0);transform-origin:top}45%{transform:scaleY(1);transform-origin:top}55%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ---------- Intro ---------- */
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(40px,7vw,110px);align-items:center}
.intro-copy .head{margin-top:.4em}
.intro-copy p+p{margin-top:1.3em}
.intro-figure{position:relative}
.intro-figure img{width:100%;aspect-ratio:4/5;object-fit:cover;box-shadow:var(--shadow)}
.intro-figure .cap{
  position:absolute;left:-28px;bottom:34px;background:var(--paper);
  padding:20px 26px;box-shadow:var(--shadow);max-width:230px;
}
.intro-figure .cap b{font-family:"Cormorant Garamond",serif;font-size:2.4rem;color:var(--gold-deep);display:block;line-height:1}
.intro-figure .cap span{font-size:.78rem;letter-spacing:.1em;color:var(--ink-soft)}

/* ---------- Business ---------- */
.biz-list{display:flex;flex-direction:column;gap:clamp(24px,4vw,40px);margin-top:clamp(44px,6vw,72px)}
.biz{
  display:grid;grid-template-columns:0.9fr 1.1fr;gap:clamp(28px,5vw,72px);align-items:center;
}
.biz:nth-child(even){grid-template-columns:1.1fr 0.9fr}
.biz:nth-child(even) .biz-media{order:2}
.biz-media{position:relative;overflow:hidden}
.biz-media img{width:100%;aspect-ratio:5/4;object-fit:cover;transition:transform 1.1s var(--ease)}
.biz:hover .biz-media img{transform:scale(1.05)}
.biz-media .num{
  position:absolute;top:0;left:0;font-family:"Cormorant Garamond",serif;
  font-size:clamp(3rem,7vw,5.5rem);color:#fff;line-height:1;padding:.2em .35em;
  text-shadow:0 4px 30px rgba(0,0,0,.4);font-style:italic;
}
.biz-body h3{
  font-family:"Noto Serif JP",serif;font-weight:600;
  font-size:clamp(1.3rem,2.6vw,1.75rem);letter-spacing:.04em;margin-bottom:.15em;
}
.biz-body .h-en{font-family:"Cormorant Garamond",serif;font-style:italic;color:var(--gold-deep);letter-spacing:.08em;font-size:1.05rem}
.biz-body p{margin:1.1em 0 1.6em;color:var(--ink-soft)}
.biz-body ul{list-style:none;display:flex;flex-wrap:wrap;gap:10px;margin-bottom:1.8em}
.biz-body li{
  font-size:.76rem;letter-spacing:.06em;border:1px solid var(--line);
  padding:.5em 1em;color:var(--ink-soft);background:var(--paper);
}

/* ---------- Brands ---------- */
.brand-portal{
  display:flex;flex-wrap:wrap;align-items:center;gap:clamp(24px,4vw,48px);
  background:var(--paper);padding:clamp(28px,4vw,44px);box-shadow:var(--shadow);
  margin-top:clamp(40px,6vw,64px);
}
.brand-portal img{width:min(340px,60vw)}
.brand-portal .p-body{flex:1;min-width:240px}
.brand-portal h3{font-family:"Noto Serif JP",serif;font-weight:600;font-size:1.3rem;margin-bottom:.4em}

.brand-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);margin-top:40px;
}
.brand-card{
  background:var(--cream);aspect-ratio:1;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:10px;padding:14px 14px 18px;text-align:center;
  transition:background .4s var(--ease);
}
.brand-card:hover{background:var(--paper)}
.brand-card img{
  flex:1;min-height:0;width:100%;object-fit:contain;
  mix-blend-mode:multiply;transition:transform .5s var(--ease);
}
.brand-card:hover img{transform:scale(1.04)}
.brand-card span{font-size:.78rem;letter-spacing:.08em;color:var(--ink-soft);flex:none}

/* ---------- News ---------- */
.news-list{margin-top:clamp(36px,5vw,56px);border-top:1px solid rgba(255,255,255,.16)}
.news-item{
  display:grid;grid-template-columns:150px 130px 1fr;gap:24px;align-items:baseline;
  padding:26px 0;border-bottom:1px solid rgba(255,255,255,.16);
}
.news-item time{font-family:"Cormorant Garamond",serif;letter-spacing:.1em;color:var(--gold)}
.news-item .tag{
  font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;border:1px solid rgba(255,255,255,.3);
  padding:.35em .9em;justify-self:start;color:#e7dfd0;
}
.news-item p{color:#efe9dd}
.news-item a{color:#fff;border-bottom:1px solid var(--gold);padding-bottom:2px}

/* ---------- Company / Profile ---------- */
.profile-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(40px,6vw,90px);align-items:start}
.profile-figure img{width:100%;aspect-ratio:3/4;object-fit:cover;box-shadow:var(--shadow)}
.dl{border-top:1px solid var(--line)}
.dl div{display:grid;grid-template-columns:150px 1fr;gap:20px;padding:18px 0;border-bottom:1px solid var(--line)}
.dl dt{font-weight:600;font-size:.82rem;letter-spacing:.06em;color:var(--ink)}
.dl dd{color:var(--ink-soft);font-size:.9rem}

/* ---------- History ---------- */
.timeline{margin-top:clamp(40px,6vw,64px);max-width:760px}
.tl{display:grid;grid-template-columns:120px 1fr;gap:32px;padding:24px 0;border-bottom:1px solid var(--line);position:relative}
.tl:first-child{border-top:1px solid var(--line)}
.tl time{font-family:"Cormorant Garamond",serif;font-size:1.35rem;color:var(--gold-deep);letter-spacing:.04em}
.tl p{color:var(--ink-soft)}
.tl p b{color:var(--ink);font-weight:600}

/* ---------- Access ---------- */
.access-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(36px,6vw,72px)}
.access-card{padding:clamp(28px,4vw,40px);background:var(--paper);border:1px solid var(--line)}
.access-card h3{font-family:"Noto Serif JP",serif;font-weight:600;font-size:1.15rem;margin-bottom:.2em}
.access-card .role{font-family:"Cormorant Garamond",serif;font-style:italic;color:var(--gold-deep);letter-spacing:.06em;margin-bottom:1em}
.access-card address{font-style:normal;color:var(--ink-soft);margin-bottom:1.4em}

/* ---------- Contact ---------- */
.contact{position:relative;color:#fff;text-align:center;overflow:hidden}
.contact-bg{position:absolute;inset:0;z-index:0}
.contact-bg img{width:100%;height:100%;object-fit:cover}
.contact-bg::after{content:"";position:absolute;inset:0;background:rgba(18,16,13,.78)}
.contact .wrap{position:relative;z-index:1;padding-top:clamp(84px,12vw,150px);padding-bottom:clamp(84px,12vw,150px)}
.contact .eyebrow{justify-content:center;color:var(--gold)}
.contact .eyebrow::before{background:var(--gold)}
.contact h2{font-family:"Cormorant Garamond","Noto Serif JP",serif;font-weight:500;font-size:clamp(2rem,5vw,3.6rem);margin:.3em 0 .5em}
.contact p{max-width:34em;margin:0 auto 2.4em;color:#ddd6c8}
.contact-actions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}

/* ---------- Footer ---------- */
.site-footer{background:#141210;color:#b7b0a3;padding:clamp(56px,8vw,90px) 0 40px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand .brand-logo{width:56px;height:56px;margin-bottom:18px}
.footer-brand b{font-family:"Cormorant Garamond",serif;letter-spacing:.2em;text-transform:uppercase;color:#efe9dd;display:block;font-size:1rem}
.footer-brand p{font-size:.82rem;margin-top:12px;max-width:30em}
.footer-col h4{font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-bottom:16px;font-family:"Cormorant Garamond",serif;font-weight:600}
.footer-col a{display:block;font-size:.85rem;padding:5px 0;transition:color .3s var(--ease)}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:28px;font-size:.75rem;letter-spacing:.06em}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(38px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.12s}
.reveal.d2{transition-delay:.24s}
.reveal.d3{transition-delay:.36s}

/* ---------- Responsive ---------- */
@media(max-width:1000px){
  .biz,.biz:nth-child(even){grid-template-columns:1fr}
  .biz:nth-child(even) .biz-media{order:0}
  .intro-grid,.profile-grid,.access-grid{grid-template-columns:1fr}
  .intro-figure .cap{left:0}
  .brand-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr}
  .news-item{grid-template-columns:110px 1fr;row-gap:6px}
  .news-item .tag{grid-column:2}
}
@media(max-width:720px){
  .nav{
    position:fixed;inset:0;background:var(--cream);flex-direction:column;
    justify-content:center;gap:28px;transform:translateX(100%);
    transition:transform .5s var(--ease);
  }
  .menu-open .nav{transform:none}
  .nav a{color:var(--ink)!important;font-size:1rem;letter-spacing:.16em}
  .nav .nav-cta{border-color:var(--ink)}
  .burger{display:flex}
  .dl div{grid-template-columns:1fr;gap:4px}
  .tl{grid-template-columns:1fr;gap:6px}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:10px}
  .hero h1 .jp{letter-spacing:.08em}
}
@media(max-width:420px){
  .brand-grid{grid-template-columns:1fr}
  .brand-portal{flex-direction:column;text-align:center}
}